"Brain lesion" is a very general term, it just means an area of brain tissue that looks abnormal on x-ray, MRI or CAT scan. There are hundreds of different disorders (not to mention injuries) that can cause brain lesions of one type or another.

great answer auntie,really. the one thing you left out tho that is a very common finding as far as lesions within the brain is the AVM counterpart,a cavernous hemangioma. many many people have these within the brain(the liver is also a very common place too). they can also, but very rarely show up in the spinal cord too. mine did. that sucked. just wanted to mention probably the ONLY type you left out of that biggie list of yours,lol. the AVM is arterially fed while a cavernous hemangioma is only veinous fed. great post tho. marcia

Yes and I should have known that, I was with a relative when she was (accidentally) diagnosed by MRI after a very bad fall. There was some confusion if it was AVM or a CCM, one doc arguing with the other over whether or not it looked like a "raspberry" or some other fruit! We were in one of those curtained off ER rooms listening to the discussion, giggling and terrified at the same time. I kept telling her she had fruit for brains.

oh geez, my particular MRI stated mine looked, and i kid you not,"like a blooming effect, like a flower blooms". i'm like what the h***? really strange to read THAT in my report. they thought at first that mine was an AVM,so for two weeks til the angio which would show if it were arterial fed(light up) or veinous fed(no light up) i researched like a crazy person there for awhile and scared the heck outta myself. despite it "only' bing a cavernoma, it still was bleeding and had to come out anyway. but tht 'arterial' crap scared me to freaking death. my 'blooming' flower.

it sure is interesting in how some of these findings are stated by the rads. marcia